Results 51 to 60 of about 22,526 (196)

High-speed imaging and wavefront sensing with an infrared avalanche photodiode array [PDF]

open access: yes, 2015
Infrared avalanche photodiode arrays represent a panacea for many branches of astronomy by enabling extremely low-noise, high-speed and even photon-counting measurements at near-infrared wavelengths.
Atkinson, Dani   +6 more
core   +3 more sources

Breaking the Buildup-time Limit of sensitivity in Avalanche Photodiodes by Dynamic Biasing [PDF]

open access: yes, 2015
Avalanche photodiodes (APDs) are the preferred photodetectors for direct-detection, high data-rate long-haul optical telecommunications. APDs can detect low-level optical signals due to their internal amplification of the photon-generated electrical ...
Campbell, Joe C.   +4 more
core   +1 more source

A time-resolution study with a plastic scintillator read out by a Geiger-mode Avalanche Photodiode

open access: yes, 2011
In this work we attempt to establish the best time resolution attainable with a scintillation counter consisting of a plastic scintillator read out by a Geiger-mode Avalanche Photodiode.
A. Stoykov   +10 more
core   +1 more source

Low Noise and High Photodetection Probability SPAD in 180 nm Standard CMOS Technology [PDF]

open access: yes, 2017
A square shaped, low noise and high photo-response single photon avalanche diode suitable for circuit integration, implemented in a standard CMOS 180 nm high voltage technology, is presented.
Accarino, Claudio   +6 more
core   +1 more source

Infrared Avalanche Photodiode Detectors

open access: yesDefence Science Journal, 2017
This study presents on the design, fabrication and characteristics of HgCdTe mid-wave infrared avalanche photodiode (MWIR APD). The gain of 800 at - 8 V bias is measured in n+-ν-p+ detector array with pitch size of 30 μm. The gain independent bandwidth of 6 MHz is achieved in the fabricated device.
Anand Singh, Ravinder Pal
openaire   +1 more source

Multi-Gain-Stage InGaAs Avalanche Photodiode With Enhanced Gain and Reduced Excess Noise

open access: yesIEEE Journal of the Electron Devices Society, 2013
We report the design, fabrication, and test of an InGaAs avalanche photodiode (APD) for 950–1650 nm wavelength sensing applications. The APD is grown by molecular beam epitaxy on InP substrates from lattice-matched InGaAs and InAlAs alloys ...
George M. Williams   +4 more
doaj   +1 more source

Silicon avalanche photodiode operation and lifetime analysis for small satellites

open access: yes, 2013
Silicon avalanche photodiodes (APDs) are sensitive to operating temperature fluctuations and are also susceptible to radiation flux expected in satellite-based quantum experiments.
Chandrasekara, Rakhitha   +3 more
core   +1 more source

A 250 m Direct Time-of-Flight Ranging System Based on a Synthesis of Sub-Ranging Images and a Vertical Avalanche Photo-Diodes (VAPD) CMOS Image Sensor

open access: yesSensors, 2018
We have developed a direct time-of-flight (TOF) 250 m ranging Complementary Metal Oxide Semiconductor (CMOS) image sensor (CIS) based on a 688 × 384 pixels array of vertical avalanche photodiodes (VAPD).
Yutaka Hirose   +14 more
doaj   +1 more source

Large-Area, Low-Noise, High Speed, Photodiode-Based Fluorescence Detectors with Fast Overdrive Recovery

open access: yes, 2005
Two large-area, low noise, high speed fluorescence detectors have been built. One detector consists of a photodiode with an area of 28 mm x 28 mm and a low noise transimpedance amplifier.
D. DeMille   +4 more
core   +3 more sources

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